'Ro-setta stone' definitions:
Definition of 'Ro-setta stone'
From: GCIDE
- Ro-setta stone \Ro-set"ta stone`\ A stone found at Rosetta, in Egypt, bearing a trilingual inscription, by aid of which, with other inscriptions, a key was obtained to the hieroglyphics of ancient Egypt. --Brande & C. [1913 Webster]